As far as I know, the Android port isn't nearly ready for translations, as the original English strings aren't finalized and development's still in a state where a lot of the UI's gonna get shuffled around. Sonicadvance1 is currently mostly concentrating on the ARM JIT recompiler and the OpenGL ES 3 backend at the moment, and for the latter he already has two Adreno 320 devices (HTC Droid DNA, the non-Exynos-Octa SGS4) plus that one ARM Chromebook with a Mali-T604 MP4. Both your phones have Adreno 320s in 'em (unless you get the Octa S4, which, IIRC, has the hardware for GLES3 but not the drivers yet) and I already have an HTC One for testing in case he runs into anything One-specific.

I'd recommend you two just enjoy your new phones for now. I don't think there's much work available for non-devs at this point in development, and Dolphin for Android is currently kinda unusable for actual game-playing anyway.